Leg raises work your lower abs which are usually hard muscles to target.
- Lie on a flat bench if you have one. If you don't, then just lie down on the floor. Keep your hands under your hips to support your back.
- Your legs should be hanging off the bench from your knees down. With your feet together and your toes pointed, raise your legs straight up towards the ceiling. Keep your legs straight but don't lock your knees. Pause at the top and lower your legs back to the starting position in slow controlled manner.
- The range of motion doesn't have to be large for this exercise to be effective.